Electric-light switch.



C. WAGNER.. ELECTRIC` LIGHT SWITCH. APPLIOATION FILED .111111.9, 1910.

985,234. Patented 11611.28, 1911.

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WIT/1155555 I INV TQR l C. WAGNER.

ELECTRIC LIGHT SWITCH.

APPLIoATmN FILED 111111.11. 1910,

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j l WIT/VE $55 UNITED STATES PATENT OFFICE.

CHARLES' WAGNER, OF NEW YORK, N. Y., ASSIGNOR TO STERLING BRONZE COMPANY,

' A CORPORATION OF NEW YORK.

ELECTRIC-LIGHT SWITCH.

Specification of Letters Patent.

Patented Feb. 28, 1911.

Application tiled March 9. 1910. Serial No. 548,249.'

the art. to which it a]' pertains to make and use the saine.

This invention relates to iiriprovements in switches for use in incandescent i electric lighting, and particularly to that class of switches for this purpose in which a part of -the fixture is rotated in turning on or turning ott' the current and therefore dispenses with what is commonly known as a key.

One of the objects of this' invention is to adapt a switch of this sort to an electric lamp having the similitude of a candle, though this formof switch may be applied to any ordinary electric lamp socket.

The invention, therefore, consists in the structure of the parts and their combination substanially as hereinafter described and claimed.

1n the at-.comlmnying drawings which form a part of this specification: Figure 1 represents 'a vertical, median section of the improved switch applied to an incandescent lixture simulating a candle. Fig. 2 is an enlarged representation partly in elevation and partly in vertical, median section with the parts in the same position as in Fig. 1. Fig. 3 is a complete vertical, median section of said parts in the same po,n sition as in Fig. 1*. Fig. 4 is a complete vertical, median section of the switch taken at right angles to thel section in Fig. 3. Fig. 5 is a plan ot the switch as seen in Fig, Q. Fig. t is a view from the end side f the switch as seen in Fig. 4. Fig. 7 'is a horizontal, transverse section through Fig. 3.

Fig. 8 is a like section showing the rotary parts of the switch turned through an angle of 90 degreesv` which position is that occupied when the current through the lamp is eut ott. v

1n the simulation of a candle, Fig. 1, 10 represents a base or drip catcher, 11 the stem of a pedestal, 12 ay socket for the candie, 13 a candle and 14 the blaze of the candle consisting ofan incandescent lamp.

To the stem 11 a collar as 15 is connected by screw-threads and upon this collar is supported the candle-socket 12, which though but a shield for the switch may be used to operate it. This shield is mounted to rotate about a collar 15. Within the stem 11 is secured a tube 16, upon which is mounted, by means ot' a'collar 17, the tube-section 18 ot' porcelain which simulates the candle. la 'the upper end of ltube 1G is secured the incandescent lamp, at the base of which is a collar 18 forming a. lateral support for the upper end of the tubesection 13. Through the tube 16 pass the conductors ex tending to the lamp socket within the collar 18. One of these conductors, as 19, ex tends unintierruptedly through the tube 16, while the other is interrupted at the switch where its ends 20 and 21 are-so located as to be engaged by the movable contacts of the switch. The switch, in the preferred form illustrated. has a porcelain body 9.2 held to the tube 113 between collars 23 and Q4, which are soldered or otherwise fixed to the tube 1G. About the tube 16 and recessed t0 receive the lowerend of the porcelain body 22 is a porcelain 'base 25, designed to carry the rotatable members ofthe switch. This base piece is mounted upon a plate as 2G, andis fixed thereto as by lugs 27 struck up there- .fi-mnandentering holes in the base 25. The' with the ends S20 and 91 of the intcrrul'ited comluctor. lhe endsl of said conductor are brought out through suitable 'openings in the tube 16 and passed down through vertical holes i-n tlanges 31 and 32 formed upon the porcelain body 2Q. The ends of these wires which pass through said tianges are stripped of their insulation so that the contact sin'ings 31 may make suitable electrical engagement therewith. vThe means shown for securing cylinder 29 to the base 25 mayV be lugs such as indicated at 34, Fig. 1, entering a recess in the'base 25. The upper flange 31 on the body 22 also forms a lateral support for the upper end of the cylinder 29. An insulating cylinder 33 is mounted twoends 20 and 21 of the interrupted con-- onv the base 25 and servesy as a protector or shield .for the parts of the switch. As a.V

means for positively preventing the porcelain body 22 from rotating about the tube 16, lugs as 35 and 36 may be provided upon the collars 23 and 24 respectively, Figs. 2- and 4, entering into suitablel recess on thel ends of theporcelain body 22.`

It will be noted that the-bared portions of the conductors 20 and 21 lie against the sides of the porcelain body 22 and are eX- posed betweenthe collars 31 and 32 of said body, and that nothing lies between the ends of -the conductors 20, 21 and the springs 30 which are formed from the substance of the cylinder. Therefore, upon the rotation of the cylinder V29 the springs will engage the conductor ends v2O and 21, and since the said springs are in electrical 4connection with one another through the body of the cylinder 29 they will join electrically the ment will be indicated by a slight click. To

turn the current' off the socket 12 will be again rotated. To turn the current on or on' the socket-.l2 may be rotated in either direction at will. lTo oet at the. terminals of the switch the col ar.15 may be un` screwed andthe socket or shield 12 lowered.

' I claim 1. In an electric switch, the combination of f conductors, an insulating cylinder through which pass the conductors, and a ro.- tatable conduct-ing cylinder about the insulating cylinder and bearing spring contacts.

. l 2. In an electric switch, the combination of a conductor, a rotatable candle socket l Witnesses: I

and. a rotatable cylinder operated by the socketY and circumferentially cut to form spring contacts for engagement With the at the top and bottom, the anges being per-l forated to receive a conductor, a conductin cylinder about the insulating cylinder an bearing on the lianges of the insulating cylinder and having a substantially central portion on the spring contacts.

4. In an electric switch, the combination of a tube for the conductors, an insulating cylinder receiving the ends of one conductor, a rotatable metal cylinder about the insulating cylinder having its central part formed into opposing spring contacts so that the switch may be controlled by turning the metal cylinder in either direct-ion.

5. In an electric switch, the combination of a tube for the conductors va fixed nonconducting cylinder surrounding. the tube and having exterior bearing flanges through which pass theconductors, a rotatable metal cylinder surrounding the porcelain cylinder and cut to form substantially central spring contacts, a rotatable base engaging the metal'cylinder and a rotatable socket inclosing the cylinder and engaging the base.

6. In an electric switch, the combination of conductors, a tube'receiving the conductors and having `openings through which opposite ends of one of the conductors pass, an insulating cylinder about the tube receiving the ends of the conductor which pass through the sides of the tube, a rotatable cylinder bearing spring contracts, surrounding the insulating cylinder'and turning upon it to bring the contacts into and out of engagement with the ends of the conductor.

In testimony whcreol I affix my .signa- `ture, in lpresence of two witnesses.

CHARLES WVAGNER.

S. Weiss,

sic 

